EP2405552B1 - Adpativ induktives netzteil - Google Patents

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Publication number
EP2405552B1
EP2405552B1 EP11183065.9A EP11183065A EP2405552B1 EP 2405552 B1 EP2405552 B1 EP 2405552B1 EP 11183065 A EP11183065 A EP 11183065A EP 2405552 B1 EP2405552 B1 EP 2405552B1
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EP
European Patent Office
Prior art keywords
power supply
tank circuit
characteristic
inductive power
operating parameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP11183065.9A
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English (en)
French (fr)
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EP2405552A2 (de
EP2405552A3 (de
Inventor
David W. Baarman
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Philips IP Ventures BV
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Philips IP Ventures BV
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Publication date
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Publication of EP2405552A3 publication Critical patent/EP2405552A3/de
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Publication of EP2405552B1 publication Critical patent/EP2405552B1/de
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H02J13/00024—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission by means of mobile telephony
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/538—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration
    • H02M7/53803—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration with automatic control of output voltage or current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/20—The network being internal to a load
    • H02J2310/22—The load being a portable electronic device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/01—Resonant DC/DC converters
    • H02M3/015—Resonant DC/DC converters with means for adaptation of resonance frequency, e.g. by modification of capacitance or inductance of resonance circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33571—Half-bridge at primary side of an isolation transformer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/4815—Resonant converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/4815—Resonant converters
    • H02M7/4818—Resonant converters with means for adaptation of resonance frequency, e.g. by modification of capacitance or inductance of resonance circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/242—Home appliances
    • Y04S20/246—Home appliances the system involving the remote operation of lamps or lighting equipment

Definitions

  • This invention relates generally to contactless power supplies, and more specifically to inductively coupled contactless power supplies.
  • CEETS Contactless energy transmission systems
  • CEETS are composed of power supplies and remote devices.
  • the remote devices could be chargeable, such as batteries, micro-capacitors, or any other chargeable energy source.
  • CEETS could directly power the devices.
  • CEETS uses magnetic induction to transfer energy. Energy from a primary winding in the power supply is transferred inductively to a secondary winding in the chargeable device. Because the secondary winding is physically spaced from the primary winding, the inductive coupling occurs through the air.
  • CEETS dedicated to one type of device.
  • a CEETS for a rechargeable toothbrush is designed only for recharging a toothbrush, while a CEETS for a rechargeable telephone works only with a specific type of telephone. While this solution allows the CEET to operate effectively with one particular device, it fails to be sufficiently flexible to allow the power supply to operate with different rechargeable devices.
  • Prior art includes WO 02/37641 which discloses a charging device for a portable device; and, more particularly, to a noncontact charging device for charging a rechargeable battery of a portable device by the induction coupling between a charger and the rechargeable battery.
  • an inductive power supply for supplying power to a remote device according to claim 3.
  • a contactless power supply inductively couples by way of a tank circuit to a device.
  • the power supply has a controller for dynamically adjusting the resonant frequency of the tank circuit.
  • the tank circuit could have either a variable capacitor or a variable inductor, or both.
  • the power supply also may have an inverter.
  • a drive circuit connected to the inverter controls the frequency of the inverter and the duty cycle of the inverter.
  • a controller with an attached memory directs the operation of the inverter by way of the drive circuit.
  • the inverter may also be connected to a DC power source. The controller could then change the rail voltage of the DC power source.
  • the contactless power supply can energize a variety of different devices.
  • the power supply can even energize several different devices at the same time. This ability to power a multitude of different devices overcomes many of the limitations previously associated with CEETS. Further, because the power supply can energize a variety of different devices, a central single source for supply power to a variety of small electronic devices is possible.
  • a sensor may also coupled to the tank circuit. It would monitor various operational characteristics of the tank circuit, such as the phase of the current within the tank circuit. These operation characteristics are indicative of the total load energized by the power supply. When the operational characteristics indicate that the power supply is not efficiently supplying power to the load, the controller causes the power supply to seek an improved configuration.
  • the process of seeking an improved configuration may include one or more of the following steps.
  • the power supply could automatically attempt to compensate by changing the frequency of the inverter and the duty cycle of the inverter. If this sufficiently correct the efficiency of the power supply, the controller causes the tank circuit to change its resonant frequency.
  • the resonant frequency of a tank circuit is in fact a range centered about a frequency.
  • the tank circuit will resonate at frequencies which are approximately the resonant frequency.
  • the adaptive power supply described herein reconfigures the tank circuit to have a substantially different resonant frequency.
  • the tank circuit may consist of either a variable inductor or a variable capacitor or both.
  • the controller would then change the inductance of the variable inductor or the capacitance of the variable capacitor, or both, thus causing the tank circuit to have a different resonant frequency.
  • the controller may also establish a new rail voltage for the DC power source. It also sets a new inverter frequency and a new duty cycle for the inverter. The adaptive power supply then operates with the new configuration.
  • the power supply will once again attempt to rectify the problem by changing the frequency of the inverter and the duty cycle of the inverter. If the problem is still not corrected, then the power supply will repeat the process of reconfiguring the tank circuit, setting a new inverter frequency and setting a new duty cycle.
  • This power supply continually searches for the most efficient settings to deliver power to the devices. However, if none of the various settings delivers power efficiently to the devices, then the power supply will select the most efficient of the previous configurations and operate the power supply with those settings.
  • the power supply efficiently powers a variety of loads. Further, because the power supply is contactless, a user does not need to have a multitude of different power supplies or connectors.
  • the present invention provides an adaptive inductive ballast circuit in which the inductance and/or the capacitance of the power supply circuit is variable to provide a broad range of adaptability, thereby permitting the ballast circuit to power a variety of inductively powered devices with widely differing load characteristics.
  • FIG. 1 A block diagram showing the general construction of an adaptive inductive ballast 10 in accordance with one embodiment of the present invention is shown in FIG. 1 .
  • the adaptive inductive ballast 10 generally includes a microprocessor 12 that controls operation of the circuit, a multi-tap primary 14 for generating a magnetic field, a wave shaper and drive subcircuit 16 that generates the signal applied to the primary 14, a current sense subcircuit 18 that monitors the signal applied to the primary 14 and provides corresponding feedback to the microprocessor 12, a capacitance switch 20 for adjusting the capacitance values in the wave shaper and drive subcircuit 16, and an inductance switch 22 for adjusting the inductance of the multi-tap primary 14.
  • the microprocessor is a conventional microprocessor widely available from a variety of suppliers.
  • the capacitance switch 20 generally includes two banks of capacitors and a plurality of switches, such as transistors, that are selectively actuatable by the microprocessor 12 to control the values of the two capacitor banks.
  • the capacitors in each bank can be arranged in series or parallel depending on the desired range and distribution of possible capacitance values.
  • the first bank of capacitors replace capacitor 271 of the pre-existing resonance-seeking ballast shown in the above referenced application.
  • the second back of capacitors replace capacitor 272 of the pre-existing resonance-seeking ballast shown in the above referenced patent application.
  • the capacitance switch 20 makes capacitors 271 and 272 from the pre-existing resonance-seeking ballast into variable capacitors, the values of which are controlled by the microprocessor 12.
  • the described capacitance switch 20 can be replaced by other circuitry capable of providing variable capacitance.
  • the inductance switch 22 generally includes a multi-tap primary 14 and a plurality of switches, such as transistors, that are selectively actuatable by the microprocessor 12 to control the values of the inductance of the primary 14.
  • the multi-tap primary 14 replaces primary 270 of the pre-existing resonance-seeking ballast shown in the attached patent application.
  • the inductance switch 22 makes primary 270 from the pre-existing resonance-seeking ballast into a variable inductance coil by varying the number of turns in the primary 14, the value of which is controlled by the microprocessor 12.
  • the described inductance switch 22 can be replaced by other circuitry capable of providing variable inductance.
  • the microprocessor 12 is programmed to receive input from the current sense subcircuit 18, which is indicative of the current applied to the primary 14.
  • the microprocessor 12 is programmed to separately adjust the capacitance switch 20 and the inductance switch 22 to cycle through the range of capacitance values and inductance values available to the circuit.
  • the microprocessor 12 continues to monitor the input from the current sense circuit 18 while adjusting the capacitance and inductance values to determine which values provide optimum current to the primary 14.
  • the microprocessor 12 then locks the adaptive ballast into the optimum settings.
  • a ballast feedback circuit is connected at point A and a control circuit is connected at point B.
  • Oscillator 144 provides half bridge inverter 148 with an alternating signal by way of drive 146.
  • Half bridge inverter powers tank circuit 150.
  • Current sensing circuit 218 provides feedback to oscillator 144.
  • the feedback circuit, control circuit, oscillator, half bridge inverter, drive and current sensing circuit 218 as well as other supporting circuitry is more fully described in the above referenced patent application.
  • a phase delay could be inserted at E and can be controlled as a delay line or even DSP (Digital Signal Processing) could be used to delay this signal. This delay can be used to throttle the phase and control secondary amplitude.
  • switched capacitance can adjust the resonant frequency based on the adjustable primary inductance. Simple transistors can be used to switch in and out capacitance. The capacitance is changed when the primary inductor changes as to match load.
  • primary inductance can be switched to adjust the power required by the secondary circuit With that load information, the control processor can adjust the inductance as needed to provide the power required.
  • the inductance can be switched using transistors and multiple taps from the primary inductor controlled by the microprocessor.
  • the illustrated system waits until it determines that a load is present before applying power to the primary 14. This will save power and may be done by providing each inductively powered device with a magnet that actuates a reed switch adjacent to the primary. Alternatively, a user-actuated switch (not shown) may be provided so that the user can engage the power supply when an inductively powered device is present. As another alternative, the inductively powered device may be configured to mechanically actuate a switch when it is placed into located by the primary to signal its presence. As a further alternative, the switching mechanism can be eliminated and the ballast circuit can provide power to the primary 14 regardless of the presence of a load.
  • the circuit adjusts its frequency to optimize the current applied to the primary.
  • the microprocessor locks the ballast circuit into the operating frequency and then begins to cycle through the range of inductance values available through the multi-tap primary. After each change in inductance value, the microprocessor unlocks the operating frequency and permits the ballast circuit to seek resonance, settling at a frequency that provides optimal current to the primary. The microprocessor continues cycling through the available inductance values until it has determined which value provides optimal current to the primary. In one embodiment, a progressive scanning process is used to determine the appropriate inductance value.
  • the microprocessor can step through each inductance value to determine the corresponding current, and after stepping through each value, return to the inductance value that provided the greatest current to the primary.
  • the microprocessor locks the circuit at the determined inductance value and begins to cycle through the capacitance values.
  • the microprocessor uses a progressive scanning technique to determine the capacitance that provides the primary with the greatest current. The scanning process may progress upwardly from the lowest capacitance value or downwardly from the highest capacitance value, as described above in connection with the scanning process for the inductance value.
  • the microprocessor can step through each capacitance value to determine the corresponding current, and after stepping through each value, return to the capacitance value that provided the greatest current to the primary.
  • the frequency of the ballast circuit is not permitted to vary once the appropriate inductance value has been determined.
  • the microprocessor can, alternatively, be programmed to permit the ballast circuit to seek resonance after each change in capacitance value.
  • the microprocessor may be programmed to provide adjustment of only the capacitance value or only the inductance value of the power supply circuit.
  • the multi-tap primary can be replaced by a conventional single-tap primary and the inductance switch can be eliminated.
  • the capacitor bank can be replaced by a single set of capacitors and the capacitance switch can be eliminated.
  • the microprocessor can be programmed to adjust the capacitance before adjusting the inductance.
  • the adaptive inductive ballast 10 may include phase delay circuitry (not shown) that permits the ballast 10 to throttle the phase and control secondary amplitude.
  • the phase delay circuitry may include a delay line or a Digital Signal Processor (DSP) that is connected to the wave shaper and drive circuit 16 following the operational amplifier 210.
  • DSP Digital Signal Processor
  • an additional embodiment for an adaptive contactless energy transmission system is shown in the block diagram of FIG. 4 .
  • the adaptive contactless energy transmission system is comprised of adaptive inductive power supply 305 and remote device 307.
  • power source 310 is a DC power source providing DC (direct current) power to inverter 312.
  • Inverter 312 converts the DC power to AC (alternating current) power.
  • Inverter 312 acts as an AC power source supplying the AC power to tank circuit 314.
  • Tank circuit 314 is inductively coupled to secondary winding 316 of remote device 307.
  • Secondary winding 316 of remote device 307 has no core.
  • Line 322 indicates an air gap between remote device 307 and adaptive inductive power supply 305.
  • Remote device 307 has a load 320.
  • Load 320 could include a rechargeable device, such as a micro-capacitor or a rechargeable battery.
  • load 320 could be a lamp, radio or any other electrical device adapted to receive power from adaptive inductive power supply 305 whenever remote device 307 is placed in proximity of adaptive inductive power supply 305.
  • Circuit sensor 324 is coupled to the tank circuit 314 and inverter 312. Circuit sensor 324 is also coupled to controller 326. Circuit sensor 324 provides information regarding the operational parameters of adaptive inductive power supply 305. For example, circuit sensor 324 could be a current sensor used to provide controller 326 information regarding the phase, frequency and amplitude of the current in tank circuit 314.
  • Controller 326 could be any one of a multitude of commonly available microcontrollers programmed to perform the functions hereinafter described, such as the Intel 8051 or the Motorola 6811, or any of the many variants of those microcontrollers. Controller 326 could have a ROM (read only memory) and RAM (random access memory) on the chip. Controller 326 could have a series of analog and digital outputs for controlling the various functions within the adaptive inductive power supply.
  • Controller 326 is connected to memory 327. Controller 326 is also coupled to drive circuit 328.
  • Drive circuit 328 regulates the operation of inverter 312, such as the frequency and timing of inverter 312.
  • Drive circuit 328 could be constructed in a number of different manners.
  • driver circuit 328 could be constructed of discrete components such as transistors, resistors and capacitors; it could be a discrete integrated circuit designed to drive inverters; or it could be a functional component of controller 326 if controller 326 were a microcontroller.
  • Controller 326 is also coupled to power source 310. Controller 326 can manipulate the rail voltage of power source 310. As is well known, by altering the rail voltage of power source 310, the amplitude of the output of inverter 312 is also altered.
  • controller 326 is coupled to variable inductor 330 and variable capacitor 332 of tank circuit 314.
  • Controller 326 could be a microcontroller, such as an 8051-type microcontroller.
  • controller 326 could be a microprocessor with additional supporting circuitry.
  • Controller 326 can modify the inductance of variable inductor 330 or the capacitance of variable capacitor 332. This could be done, e.g., by switching in or out additional capacitor or inductors or by changing the physical characteristics of variable inductor 330 or variable capacitor 332. By modifying the inductance of variable inductor 330 and the capacitance of variable capacitor 332, the resonant frequency of tank circuit 314 can be changed.
  • tank circuit 314 may have a first resonant frequency and a second resonant frequency.
  • Tank circuit 314 could also have several resonant frequencies.
  • the term "resonant frequency” refers to a band of frequencies within which tank circuit 314 will resonate. As is well known, a tank circuit will have a resonant frequency, but will continue to resonate within a range of frequencies.
  • Variable inductor 330 could be a thyristor controlled variable inductor, a compressible variable inductor, parallel laminated core variable inductor, a series of inductors and switches capable of placing select fixed inductors into tank circuit 314, or any other controllable variable inductor.
  • Variable capacitor 332 could be a switched capacitor array, a series of fixed capacitors and switches capable of placing select fixed capacitors into tank circuit 314, or any other controllable variable capacitor.
  • Tank circuit 314 also includes primary winding 334.
  • Primary winding 334 and variable inductor 330 are shown separate. Alternatively, primary winding 334 and variable inductor 330 could be combined into a single element.
  • Tank circuit 314 is shown as a series resonant tank circuit. A parallel resonant tank circuit could also be used.
  • FIGs. 5A and 5B show a flow chart showing the operation of adaptive inductive power supply 305 of adaptive contactless energy transmission system shown in FIG. 4 .
  • controller 326 When turned on (step 400), controller 326 initializes the resonant frequency of tank circuit 314 by setting the inductance of variable inductor 330 and the capacitance variable capacitor 332 so that tank circuit 314 operates at a pre-selected initial resonant frequency. Step 402. Controller 326 initializes drive circuit 328 to operate at a pre-selected frequency with a pre-selected phase offset. Controller 326 initializes power source 310 to operate at a predetermined rail voltage. Step 402.
  • adaptive inductive power supply 305 when adaptive inductive power supply 305 is initially energized, adaptive inductive power supply 305 might be initialized to supply power at a very low level. Alternatively, adaptive inductive power supply 305 might be initialized to supply power at a more moderate level to accommodate some common remote devices.
  • the operating parameters for the power supply are various measures of current and voltage throughout the system.
  • the peak to peak inverter voltage, the RMS current flowing through the primary winding, and the phase offset of the current flowing through the primary winding are all operating parameters.
  • the operating range could include a range of the phase offset between the inverter voltage and the voltage current, a range for the current amplitude, and a range for the inverter output voltage.
  • an operating range could be an inverter voltage from 5 Volts to 5.3 volts, with a current phase offset of no more than 20 degrees, and a current amplitude of between 1 ⁇ 2 and 1 amp.
  • the nominal range is the acceptable range of possible values for the operating parameters. If an operating parameter are not within the nominal range, then the power supply is not operating efficiently.
  • Controller 326 continually monitors the operating parameters of adaptive inductive power supply 305. If the operating parameters fall within the nominal range, then the circuit continues to idle. Step 408.
  • controller 326 reconfigures adaptive inductive power supply 305.
  • adaptive inductive power supply 305 had an initially low power setting, adaptive inductive power supply 305 would thus sense the presence of the remote device, and automatically increase power to a more moderate level.
  • reconfiguration of adaptive inductive power supply 305 could be triggered by one operating parameter falling outside of the nominal range, or reconfiguration of adaptive inductive power supply 305 could be triggered by a combination of operating parameters falling outside of the nominal range. It is satisfactory to monitor only the phase of the current flowing through the primary winding. However, various enhancements where other operating parameters are measured and weighted together could be readily conceived.
  • controller 326 causes drive circuit 328 to alter the duty cycle of inverter 312. Step 410.
  • the duty cycle of inverter 312 is altered, and the altered duty cycle is stored in memory 327.
  • Step 412 If the operating parameters are still outside of the nominal range, then a 'best known setting' flag is checked. Step 414. The 'best known setting' flag is discussed below.
  • controller 326 determines whether the inverter frequency can be adjusted and still maintain resonance within tank circuit 314. Step 418. Controller 326 first finds the maximum and minimum resonant frequency of tank circuit 314.
  • the maximum and minimum resonant frequency of tank circuit 314 for any particular configuration of variable inductor 330 and variable capacitor 332 could be stored in memory 327.
  • the maximum and minimum resonant frequency of tank circuit 314 could be calculated from the inductance of primary winding 334, the inductance of variable inductor 330, and the capacitance of variable capacitor 332. Controller 326 then compares the maximum and minimum resonant frequency of tank circuit 314 with the current operating frequency of inverter 312.
  • controller 326 causes drive circuit 328 to adjust the inverter frequency and stores the new inverter frequency in memory 327. Step 420. The circuit returns to the idle state. Step 406. If the inverter frequency cannot be adjusted within the resonant frequency of the current configuration of tank circuit 314, then controller 326 determines whether the configuration of tank circuit 314 can be modified. Step 422.
  • controller 326 stores the current frequency, duty cycle, rail voltage, tank circuit configuration, and operating parameters in memory 327. Step 424. It then adjust the tank circuit resonant frequency. Step 426. Adjustment of the tank circuit resonant frequency is accomplished by changing the inductance of variable inductor 330 and the capacitance of variable capacitor 332.
  • Step 428 Since the resonant frequency of tank circuit 314 has been altered, a new nominal range for the operating parameters is calculated or loaded from memory 327. Step 430. The power supply then returns to idle. Step 406.
  • controller 326 searches for the best prior configuration. Step 432. Controller 326 compares the operating parameters previously stored and selects the best configuration.
  • controller 326 retrieves various settings of adaptive inductive power supply 305 from memory for that configuration. Step 433. Controller 326 then sets the configuration of tank circuit 314 by setting the inductance of adjustable inductor 30 and capacitance of adjustable capacitor 32. Step 434. Controller 326 then sets the frequency of inverter 312. Step 436. Controller 326 then sets the duty cycle of inverter 312. Step 438. Controller 326 sets the rail voltage of power source 310. Step 440.
  • Controller 326 then stores the expected operating parameters in memory 327. Step 442. Alternatively, controller 326 could set a pointer to the expecting operating parameters in memory 327. Controller 326 then sets the 'best known setting' flag. Step 444. The power supply then returns to the idle state. Step 406. The 'best known setting' flag is an indication to controller 326 that the current settings being used by adaptive inductive power supply 305 are the best available.
  • the system checks if the operating parameters are approximately equal to the expected operating parameters.
  • controller 326 checks whether the current operating parameters are approximately the same as the expected operating parameters. Step 446. If so, then further adjustments to power supply will not result in any improved performance, and therefore the system merely returns to the idle state. Step 406.
  • Step 448 The process of reconfiguring adaptive inductive power supply 305 continues. Step 422.
  • Adaptive inductive power supply 305 automatically adjusts to different devices with different loads, and continually determines and optimal operating configuration for the power supply.
  • adaptive inductive power supply 305 more than a single device can be simultaneously powered by adaptive inductive power supply 305.
  • controller 326 continually adjusts the operating parameters of adaptive inductive power supply 305 to maintain efficiency. This allows for one single power supply to provide power to a multitude of different devices.
  • the devices need not be located immediately adjacent adaptive inductive power supply 305. That can be spaced at different distances away from adaptive inductive power supply 305. For example, it is possible to construct a power supply whereby sealed lights are stacked near adaptive inductive power supply 305 and each light will be illuminated even though the distance from adaptive inductive power supply 305 is different for each light.

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Claims (6)

  1. Verfahren zum Betreiben eines induktiven Netzteils für eine entfernte Vorrichtung (307), wobei das Verfahren die folgenden Schritte aufweist:
    Zuführen von Strom zu einem Schwingkreis (314) innerhalb des induktiven Netzteils, wobei der dem Schwingkreis zugeführte Strom eine Betriebsfrequenz, eine Betriebsspannung, eine relative Einschaltdauer hat und der Schwingkreis (314) eine einstellbare Resonanzfrequenz hat;
    Herstellen einer induktiven Kopplung zwischen dem induktiven Netzteil und der entfernten Vorrichtung (307) mit anfänglicher Betriebsfrequenz, Betriebsspannung, relativer Einschaltdauer und einstellbarer Resonanzfrequenz des Schwingkreises (314) und Eintritt in einen Bereitschaftszustand;
    wiederholtes Überwachen zumindest eines Betriebsparameters des induktiven Netzteils nach Herstellen der induktiven Kopplung und, entsprechend dieser Überwachung:
    a) wenn der zumindest eine Betriebsparameter des induktiven Netzteils innerhalb eines Nennbereichs ist, Rückkehr zu dem Bereitschaftszustand,
    b) wenn der zumindest eine Betriebsparameter des induktiven Netzteils nicht innerhalb eines Nennbereichs ist, Neukonfigurieren des induktiven Netzteils durch:
    - Einstellen zumindest einer ersten Eigenschaft des Netzteils, wobei die erste Eigenschaft eines von der Betriebsfrequenz, der Betriebsspannung oder der relativen Einschaltdauer ist;
    - Einstellen einer zweiten Einstellen des Netzteils, wobei die zweite Eigenschaft die Resonanzfrequenz des Schwingkreises (314) ist;
    - wenn nach dem Einstellen der zweiten Eigenschaft der zumindest eine Betriebsparameter innerhalb des Nennbereichs ist, Speichern und Verwenden der Einstellungen, welche von der zumindest einen ersten Eigenschaft, der zweiten Eigenschaft und dem zumindest einem Betriebsparameter definiert werden; und
    - wenn nach dem Einstellen der zweiten Eigenschaft der zumindest eine Betriebsparameter nicht innerhalb des Nennbereichs ist, Suchen und Verwenden der besten gespeicherten vorherigen Einstellung.
  2. Verfahren nach Anspruch 1, wobei der Schritt des wiederholten Überwachens zumindest eines Betriebsparameters des induktiven Netzteils weiter als Abtasten zumindest eines Betriebsparameters des Schwingkreises definiert ist.
  3. Induktives Netzteil zum Versorgen einer entfernten Vorrichtung (307) mit Strom, umfassend:
    einen Schwingkreis (314) mit einer Primärseite zum drahtlosen Übertragen von Strom an eine entfernte Vorrichtung (307) durch eine induktive Kopplung, wobei der Schwingkreis (314) eine einstellbare Resonanzfrequenz hat;
    einen Wechselrichter (148, 312) zum Zuführen von Strom zu dem Schwingkreis (314), wobei der Wechselrichter (148, 312) Strom zu dem Schwingkreis (314) bei einer Betriebsfrequenz und einer relativen Einschaltdauer zuführt;
    eine Gleichstromquelle (310), welche mit dem Wechselrichter (148, 312) gekoppelt ist, um den Wechselrichter (148, 312) mit Gleichstrom zu versorgen, wobei die Gleichstromquelle (310) eine Betriebsspannung hat;
    eine Treiberschaltung (328), welche mit dem Wechselrichter (148, 312) gekoppelt ist, wobei die Treiberschaltung (328) die Betriebsfrequenz und die relative Einschaltdauer vorgibt; und
    eine Steuerung (326) zum dynamischen Neukonfigurieren des induktiven Netzteils, wobei die Steuerung konfiguriert ist für:
    Herstellen einer induktiven Kopplung zwischen dem induktiven Netzteil und der entfernten Vorrichtung (307) mit anfänglicher Betriebsfrequenz, Betriebsspannung, relativer Einschaltdauer und einstellbarer Resonanzfrequenz des Schwingkreises (314) und Eintritt in einen Bereitschaftszustand;
    wiederholtes Überwachen zumindest eines Betriebsparameters des induktiven Netzteils nach Herstellen der induktiven Kopplung und, entsprechend dieser Überwachung:
    a) wenn der zumindest eine Betriebsparameter des induktiven Netzteils innerhalb eines Nennbereichs ist, Rückkehr zu dem Bereitschaftszustand,
    b) wenn der zumindest eine Betriebsparameter des induktiven Netzteils nicht innerhalb eines Nennbereichs ist, Neukonfigurieren des induktiven Netzteils durch:
    - Einstellen zumindest einer ersten Eigenschaft des Netzteils, wobei die erste Eigenschaft eines von der Betriebsfrequenz, der Betriebsspannung oder einerder relativen Einschaltdauer ist;
    - Einstellen einer zweiten Eigenschaft des Netzteils, wobei die zweite Eigenschaft einedie Resonanzfrequenz des Schwingkreises (314) ist;
    - wenn nach dem Einstellen der zweiten Eigenschaft der zumindest eine Betriebsparameter innerhalb des Nennbereichs ist, Speichern und Verwenden der Einstellungen, welche von der zumindest einen ersten Eigenschaft oder Eigenschaften, der zweiten Eigenschaft und dem zumindest einen Betriebsparameter definiert werden; und
    - wenn nach dem Einstellen der zweiten Eigenschaft der zumindest eine Betriebsparameter nicht innerhalb des Nennbereichs ist, Suchen und Verwenden der besten gespeicherten vorherigen Einstellung.
  4. Induktives Netzteil nach Anspruch 3, wobei das induktive Netzteil zumindest eines von einem variablen Kondensator (332) und einer variablen Induktivität (330) beinhaltet, wobei die Steuerung (326) konfiguriert ist, zumindest eines von dem variablen Kondensator (332) und der variablen Induktivität (330) zu variieren, um die Resonanzfrequenz einzustellen.
  5. Induktives Netzteil nach Anspruch 3, weiter einen Schaltungssensor (324) beinhaltend, welcher an den Schwingkreis (314) und an die Steuerung (326) gekoppelt ist, wobei der Schaltungssensor (324) für die Steuerung (326) zumindest einen Betriebsparameter des Schwingkreises (314) angibt.
  6. Induktives Netzteil oder das Verfahren, je nach Fall, nach einem der Ansprüche 2 oder 5, wobei der zumindest eine Betriebsparameter des Schwingkreises (314) Strom ist.
EP11183065.9A 2003-02-04 2004-01-22 Adpativ induktives netzteil Expired - Lifetime EP2405552B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US44479403P 2003-02-04 2003-02-04
US10/689,499 US7212414B2 (en) 1999-06-21 2003-10-20 Adaptive inductive power supply
PCT/US2004/001758 WO2004073150A1 (en) 2003-02-04 2004-01-22 Adaptive inductive power supply
EP04704453A EP1590877A1 (de) 2003-02-04 2004-01-22 Adaptive induktive stromversorgung

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KR101239041B1 (ko) 2013-03-04
US20110175458A1 (en) 2011-07-21
TWI367615B (en) 2012-07-01
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CN1768467B (zh) 2010-11-10
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US20160134132A1 (en) 2016-05-12
TW200423515A (en) 2004-11-01
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US10505385B2 (en) 2019-12-10
US20040130916A1 (en) 2004-07-08
EP2405564A2 (de) 2012-01-11
EP2405553A3 (de) 2014-01-22
CN101951036A (zh) 2011-01-19
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US20180019597A1 (en) 2018-01-18
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US7212414B2 (en) 2007-05-01
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US9036371B2 (en) 2015-05-19
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US9013895B2 (en) 2015-04-21
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US9906049B2 (en) 2018-02-27
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US7639514B2 (en) 2009-12-29
US20110278950A1 (en) 2011-11-17
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US9190874B2 (en) 2015-11-17
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US20120249097A1 (en) 2012-10-04
US20070171681A1 (en) 2007-07-26
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US9246356B2 (en) 2016-01-26
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